From 88597364573a46a57496c62ff0ee4b8148831ed0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Krzysztof=20Ha=C5=82asa?= Date: Mon, 24 Mar 2008 19:12:23 +0100 Subject: WAN: remove SCA II support from SCA drivers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Krzysztof Hałasa --- drivers/net/wan/c101.c | 4 +- drivers/net/wan/hd64570.c | 252 ++++++++++------------------------------------ drivers/net/wan/n2.c | 7 +- 3 files changed, 58 insertions(+), 205 deletions(-) diff --git a/drivers/net/wan/c101.c b/drivers/net/wan/c101.c index 23d66060db8..b46897996f7 100644 --- a/drivers/net/wan/c101.c +++ b/drivers/net/wan/c101.c @@ -88,7 +88,7 @@ static card_t **new_card = &first_card; /* EDA address register must be set in EDAL, EDAH order - 8 bit ISA bus */ #define sca_outw(value, reg, card) do { \ writeb(value & 0xFF, (card)->win0base + C101_SCA + (reg)); \ - writeb((value >> 8 ) & 0xFF, (card)->win0base + C101_SCA + (reg+1));\ + writeb((value >> 8 ) & 0xFF, (card)->win0base + C101_SCA + (reg + 1));\ } while(0) #define port_to_card(port) (port) @@ -381,7 +381,7 @@ static int __init c101_run(unsigned long irq, unsigned long winbase) return result; } - sca_init_sync_port(card); /* Set up C101 memory */ + sca_init_port(card); /* Set up C101 memory */ set_carrier(card); printk(KERN_INFO "%s: Moxa C101 on IRQ%u," diff --git a/drivers/net/wan/hd64570.c b/drivers/net/wan/hd64570.c index 434583a94b3..64ef6185aab 100644 --- a/drivers/net/wan/hd64570.c +++ b/drivers/net/wan/hd64570.c @@ -1,5 +1,5 @@ /* - * Hitachi SCA HD64570 and HD64572 common driver for Linux + * Hitachi SCA HD64570 driver for Linux * * Copyright (C) 1998-2003 Krzysztof Halasa * @@ -7,9 +7,7 @@ * under the terms of version 2 of the GNU General Public License * as published by the Free Software Foundation. * - * Sources of information: - * Hitachi HD64570 SCA User's Manual - * Hitachi HD64572 SCA-II User's Manual + * Source of information: Hitachi HD64570 SCA User's Manual * * We use the following SCA memory map: * @@ -26,33 +24,26 @@ * tx_ring_buffers * HDLC_MAX_MRU = logical channel #0 TX buffers (if used) */ -#include -#include -#include -#include -#include +#include +#include #include -#include +#include #include -#include -#include #include +#include #include -#include - -#include -#include -#include - +#include +#include +#include #include #include - -#include - -#if (!defined (__HD64570_H) && !defined (__HD64572_H)) || \ - (defined (__HD64570_H) && defined (__HD64572_H)) -#error Either hd64570.h or hd64572.h must be included -#endif +#include +#include +#include +#include +#include +#include +#include "hd64570.h" #define get_msci(port) (phy_node(port) ? MSCI1_OFFSET : MSCI0_OFFSET) #define get_dmac_rx(port) (phy_node(port) ? DMAC1RX_OFFSET : DMAC0RX_OFFSET) @@ -62,16 +53,6 @@ #define SCA_INTR_DMAC_RX(node) (node ? 0x20 : 0x02) #define SCA_INTR_DMAC_TX(node) (node ? 0x40 : 0x04) -#ifdef __HD64570_H /* HD64570 */ -#define sca_outa(value, reg, card) sca_outw(value, reg, card) -#define sca_ina(reg, card) sca_inw(reg, card) -#define writea(value, ptr) writew(value, ptr) - -#else /* HD64572 */ -#define sca_outa(value, reg, card) sca_outl(value, reg, card) -#define sca_ina(reg, card) sca_inl(reg, card) -#define writea(value, ptr) writel(value, ptr) -#endif static inline struct net_device *port_to_dev(port_t *port) { @@ -81,8 +62,6 @@ static inline struct net_device *port_to_dev(port_t *port) static inline int sca_intr_status(card_t *card) { u8 result = 0; - -#ifdef __HD64570_H /* HD64570 */ u8 isr0 = sca_in(ISR0, card); u8 isr1 = sca_in(ISR1, card); @@ -93,18 +72,6 @@ static inline int sca_intr_status(card_t *card) if (isr0 & 0x0F) result |= SCA_INTR_MSCI(0); if (isr0 & 0xF0) result |= SCA_INTR_MSCI(1); -#else /* HD64572 */ - u32 isr0 = sca_inl(ISR0, card); - - if (isr0 & 0x0000000F) result |= SCA_INTR_DMAC_RX(0); - if (isr0 & 0x000000F0) result |= SCA_INTR_DMAC_TX(0); - if (isr0 & 0x00000F00) result |= SCA_INTR_DMAC_RX(1); - if (isr0 & 0x0000F000) result |= SCA_INTR_DMAC_TX(1); - if (isr0 & 0x003E0000) result |= SCA_INTR_MSCI(0); - if (isr0 & 0x3E000000) result |= SCA_INTR_MSCI(1); - -#endif /* HD64570 vs HD64572 */ - if (!(result & SCA_INTR_DMAC_TX(0))) if (sca_in(DSR_TX(0), card) & DSR_EOM) result |= SCA_INTR_DMAC_TX(0); @@ -127,7 +94,6 @@ static inline u16 next_desc(port_t *port, u16 desc, int transmit) } - static inline u16 desc_abs_number(port_t *port, u16 desc, int transmit) { u16 rx_buffs = port_to_card(port)->rx_ring_buffers; @@ -139,7 +105,6 @@ static inline u16 desc_abs_number(port_t *port, u16 desc, int transmit) } - static inline u16 desc_offset(port_t *port, u16 desc, int transmit) { /* Descriptor offset always fits in 16 bytes */ @@ -147,20 +112,19 @@ static inline u16 desc_offset(port_t *port, u16 desc, int transmit) } - -static inline pkt_desc __iomem *desc_address(port_t *port, u16 desc, int transmit) +static inline pkt_desc __iomem *desc_address(port_t *port, u16 desc, + int transmit) { #ifdef PAGE0_ALWAYS_MAPPED return (pkt_desc __iomem *)(win0base(port_to_card(port)) - + desc_offset(port, desc, transmit)); + + desc_offset(port, desc, transmit)); #else return (pkt_desc __iomem *)(winbase(port_to_card(port)) - + desc_offset(port, desc, transmit)); + + desc_offset(port, desc, transmit)); #endif } - static inline u32 buffer_offset(port_t *port, u16 desc, int transmit) { return port_to_card(port)->buff_offset + @@ -186,7 +150,7 @@ static inline void sca_set_carrier(port_t *port) } -static void sca_init_sync_port(port_t *port) +static void sca_init_port(port_t *port) { card_t *card = port_to_card(port); int transmit, i; @@ -195,7 +159,7 @@ static void sca_init_sync_port(port_t *port) port->txin = 0; port->txlast = 0; -#if !defined(PAGE0_ALWAYS_MAPPED) && !defined(ALL_PAGES_ALWAYS_MAPPED) +#ifndef PAGE0_ALWAYS_MAPPED openwin(card, 0); #endif @@ -209,7 +173,7 @@ static void sca_init_sync_port(port_t *port) u16 chain_off = desc_offset(port, i + 1, transmit); u32 buff_off = buffer_offset(port, i, transmit); - writea(chain_off, &desc->cp); + writew(chain_off, &desc->cp); writel(buff_off, &desc->bp); writew(0, &desc->len); writeb(0, &desc->stat); @@ -222,16 +186,14 @@ static void sca_init_sync_port(port_t *port) sca_out(DCR_ABORT, transmit ? DCR_TX(phy_node(port)) : DCR_RX(phy_node(port)), card); -#ifdef __HD64570_H - sca_out(0, dmac + CPB, card); /* pointer base */ -#endif /* current desc addr */ - sca_outa(desc_offset(port, 0, transmit), dmac + CDAL, card); + sca_out(0, dmac + CPB, card); /* pointer base */ + sca_outw(desc_offset(port, 0, transmit), dmac + CDAL, card); if (!transmit) - sca_outa(desc_offset(port, buffs - 1, transmit), + sca_outw(desc_offset(port, buffs - 1, transmit), dmac + EDAL, card); else - sca_outa(desc_offset(port, 0, transmit), dmac + EDAL, + sca_outw(desc_offset(port, 0, transmit), dmac + EDAL, card); /* clear frame end interrupt counter */ @@ -258,7 +220,6 @@ static void sca_init_sync_port(port_t *port) } - #ifdef NEED_SCA_MSCI_INTR /* MSCI interrupt service */ static inline void sca_msci_intr(port_t *port) @@ -282,17 +243,15 @@ static inline void sca_msci_intr(port_t *port) #endif - -static inline void sca_rx(card_t *card, port_t *port, pkt_desc __iomem *desc, u16 rxin) +static inline void sca_rx(card_t *card, port_t *port, pkt_desc __iomem *desc, + u16 rxin) { struct net_device *dev = port_to_dev(port); struct sk_buff *skb; u16 len; u32 buff; -#ifndef ALL_PAGES_ALWAYS_MAPPED u32 maxlen; u8 page; -#endif len = readw(&desc->len); skb = dev_alloc_skb(len); @@ -302,7 +261,6 @@ static inline void sca_rx(card_t *card, port_t *port, pkt_desc __iomem *desc, u1 } buff = buffer_offset(port, rxin, 0); -#ifndef ALL_PAGES_ALWAYS_MAPPED page = buff / winsize(card); buff = buff % winsize(card); maxlen = winsize(card) - buff; @@ -314,12 +272,10 @@ static inline void sca_rx(card_t *card, port_t *port, pkt_desc __iomem *desc, u1 openwin(card, page + 1); memcpy_fromio(skb->data + maxlen, winbase(card), len - maxlen); } else -#endif - memcpy_fromio(skb->data, winbase(card) + buff, len); + memcpy_fromio(skb->data, winbase(card) + buff, len); -#if !defined(PAGE0_ALWAYS_MAPPED) && !defined(ALL_PAGES_ALWAYS_MAPPED) - /* select pkt_desc table page back */ - openwin(card, 0); +#ifndef PAGE0_ALWAYS_MAPPED + openwin(card, 0); /* select pkt_desc table page back */ #endif skb_put(skb, len); #ifdef DEBUG_PKT @@ -333,7 +289,6 @@ static inline void sca_rx(card_t *card, port_t *port, pkt_desc __iomem *desc, u1 } - /* Receive DMA interrupt service */ static inline void sca_rx_intr(port_t *port) { @@ -353,7 +308,7 @@ static inline void sca_rx_intr(port_t *port) while (1) { u32 desc_off = desc_offset(port, port->rxin, 0); pkt_desc __iomem *desc; - u32 cda = sca_ina(dmac + CDAL, card); + u32 cda = sca_inw(dmac + CDAL, card); if ((cda >= desc_off) && (cda < desc_off + sizeof(pkt_desc))) break; /* No frame received */ @@ -377,7 +332,7 @@ static inline void sca_rx_intr(port_t *port) sca_rx(card, port, desc, port->rxin); /* Set new error descriptor address */ - sca_outa(desc_off, dmac + EDAL, card); + sca_outw(desc_off, dmac + EDAL, card); port->rxin = next_desc(port, port->rxin, 0); } @@ -386,7 +341,6 @@ static inline void sca_rx_intr(port_t *port) } - /* Transmit DMA interrupt service */ static inline void sca_tx_intr(port_t *port) { @@ -407,7 +361,7 @@ static inline void sca_tx_intr(port_t *port) pkt_desc __iomem *desc; u32 desc_off = desc_offset(port, port->txlast, 1); - u32 cda = sca_ina(dmac + CDAL, card); + u32 cda = sca_inw(dmac + CDAL, card); if ((cda >= desc_off) && (cda < desc_off + sizeof(pkt_desc))) break; /* Transmitter is/will_be sending this frame */ @@ -423,17 +377,13 @@ static inline void sca_tx_intr(port_t *port) } - static irqreturn_t sca_intr(int irq, void* dev_id) { card_t *card = dev_id; int i; u8 stat; int handled = 0; - -#ifndef ALL_PAGES_ALWAYS_MAPPED u8 page = sca_get_page(card); -#endif while((stat = sca_intr_status(card)) != 0) { handled = 1; @@ -452,14 +402,11 @@ static irqreturn_t sca_intr(int irq, void* dev_id) } } -#ifndef ALL_PAGES_ALWAYS_MAPPED openwin(card, page); /* Restore original page */ -#endif return IRQ_RETVAL(handled); } - static void sca_set_port(port_t *port) { card_t* card = port_to_card(port); @@ -497,12 +444,7 @@ static void sca_set_port(port_t *port) port->tmc = tmc; /* baud divisor - time constant*/ -#ifdef __HD64570_H sca_out(port->tmc, msci + TMC, card); -#else - sca_out(port->tmc, msci + TMCR, card); - sca_out(port->tmc, msci + TMCT, card); -#endif /* Set BRG bits */ sca_out(port->rxs, msci + RXS, card); @@ -518,7 +460,6 @@ static void sca_set_port(port_t *port) } - static void sca_open(struct net_device *dev) { port_t *port = dev_to_port(dev); @@ -540,11 +481,7 @@ static void sca_open(struct net_device *dev) switch(port->parity) { case PARITY_CRC16_PR0: md0 = MD0_HDLC | MD0_CRC_16_0; break; case PARITY_CRC16_PR1: md0 = MD0_HDLC | MD0_CRC_16; break; -#ifdef __HD64570_H case PARITY_CRC16_PR0_CCITT: md0 = MD0_HDLC | MD0_CRC_ITU_0; break; -#else - case PARITY_CRC32_PR1_CCITT: md0 = MD0_HDLC | MD0_CRC_ITU32; break; -#endif case PARITY_CRC16_PR1_CCITT: md0 = MD0_HDLC | MD0_CRC_ITU; break; default: md0 = MD0_HDLC | MD0_CRC_NONE; } @@ -554,35 +491,20 @@ static void sca_open(struct net_device *dev) sca_out(0x00, msci + MD1, card); /* no address field check */ sca_out(md2, msci + MD2, card); sca_out(0x7E, msci + IDL, card); /* flag character 0x7E */ -#ifdef __HD64570_H sca_out(CTL_IDLE, msci + CTL, card); -#else - /* Skip the rest of underrun frame */ - sca_out(CTL_IDLE | CTL_URCT | CTL_URSKP, msci + CTL, card); -#endif -#ifdef __HD64570_H /* Allow at least 8 bytes before requesting RX DMA operation */ /* TX with higher priority and possibly with shorter transfers */ sca_out(0x07, msci + RRC, card); /* +1=RXRDY/DMA activation condition*/ sca_out(0x10, msci + TRC0, card); /* = TXRDY/DMA activation condition*/ sca_out(0x14, msci + TRC1, card); /* +1=TXRDY/DMA deactiv condition */ -#else - sca_out(0x0F, msci + RNR, card); /* +1=RX DMA activation condition */ - sca_out(0x3C, msci + TFS, card); /* +1 = TX start */ - sca_out(0x38, msci + TCR, card); /* =Critical TX DMA activ condition */ - sca_out(0x38, msci + TNR0, card); /* =TX DMA activation condition */ - sca_out(0x3F, msci + TNR1, card); /* +1=TX DMA deactivation condition*/ -#endif /* We're using the following interrupts: - TXINT (DMAC completed all transmisions, underrun or DCD change) - all DMA interrupts */ - sca_set_carrier(port); -#ifdef __HD64570_H /* MSCI TX INT and RX INT A IRQ enable */ sca_out(IE0_TXINT | IE0_RXINTA, msci + IE0, card); sca_out(IE1_UDRN | IE1_CDCD, msci + IE1, card); @@ -591,21 +513,8 @@ static void sca_open(struct net_device *dev) /* enable DMA IRQ */ sca_out(sca_in(IER1, card) | (phy_node(port) ? 0xF0 : 0x0F), IER1, card); -#else - /* MSCI TXINT and RXINTA interrupt enable */ - sca_outl(IE0_TXINT | IE0_RXINTA | IE0_UDRN | IE0_CDCD, msci + IE0, - card); - /* DMA & MSCI IRQ enable */ - sca_outl(sca_inl(IER0, card) | - (phy_node(port) ? 0x0A006600 : 0x000A0066), IER0, card); -#endif -#ifdef __HD64570_H sca_out(port->tmc, msci + TMC, card); /* Restore registers */ -#else - sca_out(port->tmc, msci + TMCR, card); - sca_out(port->tmc, msci + TMCT, card); -#endif sca_out(port->rxs, msci + RXS, card); sca_out(port->txs, msci + TXS, card); sca_out(CMD_TX_ENABLE, msci + CMD, card); @@ -615,7 +524,6 @@ static void sca_open(struct net_device *dev) } - static void sca_close(struct net_device *dev) { port_t *port = dev_to_port(dev); @@ -623,23 +531,17 @@ static void sca_close(struct net_device *dev) /* reset channel */ sca_out(CMD_RESET, get_msci(port) + CMD, port_to_card(port)); -#ifdef __HD64570_H /* disable MSCI interrupts */ sca_out(sca_in(IER0, card) & (phy_node(port) ? 0x0F : 0xF0), IER0, card); /* disable DMA interrupts */ sca_out(sca_in(IER1, card) & (phy_node(port) ? 0x0F : 0xF0), IER1, card); -#else - /* disable DMA & MSCI IRQ */ - sca_outl(sca_inl(IER0, card) & - (phy_node(port) ? 0x00FF00FF : 0xFF00FF00), IER0, card); -#endif + netif_stop_queue(dev); } - static int sca_attach(struct net_device *dev, unsigned short encoding, unsigned short parity) { @@ -653,11 +555,7 @@ static int sca_attach(struct net_device *dev, unsigned short encoding, if (parity != PARITY_NONE && parity != PARITY_CRC16_PR0 && parity != PARITY_CRC16_PR1 && -#ifdef __HD64570_H parity != PARITY_CRC16_PR0_CCITT && -#else - parity != PARITY_CRC32_PR1_CCITT && -#endif parity != PARITY_CRC16_PR1_CCITT) return -EINVAL; @@ -667,34 +565,30 @@ static int sca_attach(struct net_device *dev, unsigned short encoding, } - #ifdef DEBUG_RINGS static void sca_dump_rings(struct net_device *dev) { port_t *port = dev_to_port(dev); card_t *card = port_to_card(port); u16 cnt; -#if !defined(PAGE0_ALWAYS_MAPPED) && !defined(ALL_PAGES_ALWAYS_MAPPED) - u8 page; -#endif +#ifndef PAGE0_ALWAYS_MAPPED + u8 page = sca_get_page(card); -#if !defined(PAGE0_ALWAYS_MAPPED) && !defined(ALL_PAGES_ALWAYS_MAPPED) - page = sca_get_page(card); openwin(card, 0); #endif printk(KERN_DEBUG "RX ring: CDA=%u EDA=%u DSR=%02X in=%u %sactive", - sca_ina(get_dmac_rx(port) + CDAL, card), - sca_ina(get_dmac_rx(port) + EDAL, card), + sca_inw(get_dmac_rx(port) + CDAL, card), + sca_inw(get_dmac_rx(port) + EDAL, card), sca_in(DSR_RX(phy_node(port)), card), port->rxin, - sca_in(DSR_RX(phy_node(port)), card) & DSR_DE?"":"in"); + sca_in(DSR_RX(phy_node(port)), card) & DSR_DE ? "" : "in"); for (cnt = 0; cnt < port_to_card(port)->rx_ring_buffers; cnt++) printk(" %02X", readb(&(desc_address(port, cnt, 0)->stat))); printk("\n" KERN_DEBUG "TX ring: CDA=%u EDA=%u DSR=%02X in=%u " "last=%u %sactive", - sca_ina(get_dmac_tx(port) + CDAL, card), - sca_ina(get_dmac_tx(port) + EDAL, card), + sca_inw(get_dmac_tx(port) + CDAL, card), + sca_inw(get_dmac_tx(port) + EDAL, card), sca_in(DSR_TX(phy_node(port)), card), port->txin, port->txlast, sca_in(DSR_TX(phy_node(port)), card) & DSR_DE ? "" : "in"); @@ -702,12 +596,8 @@ static void sca_dump_rings(struct net_device *dev) printk(" %02X", readb(&(desc_address(port, cnt, 1)->stat))); printk("\n"); - printk(KERN_DEBUG "MSCI: MD: %02x %02x %02x, " - "ST: %02x %02x %02x %02x" -#ifdef __HD64572_H - " %02x" -#endif - ", FST: %02x CST: %02x %02x\n", + printk(KERN_DEBUG "MSCI: MD: %02x %02x %02x, ST: %02x %02x %02x %02x," + " FST: %02x CST: %02x %02x\n", sca_in(get_msci(port) + MD0, card), sca_in(get_msci(port) + MD1, card), sca_in(get_msci(port) + MD2, card), @@ -715,52 +605,33 @@ static void sca_dump_rings(struct net_device *dev) sca_in(get_msci(port) + ST1, card), sca_in(get_msci(port) + ST2, card), sca_in(get_msci(port) + ST3, card), -#ifdef __HD64572_H - sca_in(get_msci(port) + ST4, card), -#endif sca_in(get_msci(port) + FST, card), sca_in(get_msci(port) + CST0, card), sca_in(get_msci(port) + CST1, card)); -#ifdef __HD64572_H - printk(KERN_DEBUG "ILAR: %02x ISR: %08x %08x\n", sca_in(ILAR, card), - sca_inl(ISR0, card), sca_inl(ISR1, card)); -#else printk(KERN_DEBUG "ISR: %02x %02x %02x\n", sca_in(ISR0, card), sca_in(ISR1, card), sca_in(ISR2, card)); -#endif -#if !defined(PAGE0_ALWAYS_MAPPED) && !defined(ALL_PAGES_ALWAYS_MAPPED) +#ifndef PAGE0_ALWAYS_MAPPED openwin(card, page); /* Restore original page */ #endif } #endif /* DEBUG_RINGS */ - static int sca_xmit(struct sk_buff *skb, struct net_device *dev) { port_t *port = dev_to_port(dev); card_t *card = port_to_card(port); pkt_desc __iomem *desc; u32 buff, len; -#ifndef ALL_PAGES_ALWAYS_MAPPED u8 page; u32 maxlen; -#endif spin_lock_irq(&port->lock); desc = desc_address(port, port->txin + 1, 1); - if (readb(&desc->stat)) { /* allow 1 packet gap */ - /* should never happen - previous xmit should stop queue */ -#ifdef DEBUG_PKT - printk(KERN_DEBUG "%s: transmitter buffer full\n", dev->name); -#endif - netif_stop_queue(dev); - spin_unlock_irq(&port->lock); - return 1; /* request packet to be queued */ - } + BUG_ON(readb(&desc->stat)); /* previous xmit should stop queue */ #ifdef DEBUG_PKT printk(KERN_DEBUG "%s TX(%i):", dev->name, skb->len); @@ -770,7 +641,6 @@ static int sca_xmit(struct sk_buff *skb, struct net_device *dev) desc = desc_address(port, port->txin, 1); buff = buffer_offset(port, port->txin, 1); len = skb->len; -#ifndef ALL_PAGES_ALWAYS_MAPPED page = buff / winsize(card); buff = buff % winsize(card); maxlen = winsize(card) - buff; @@ -780,12 +650,10 @@ static int sca_xmit(struct sk_buff *skb, struct net_device *dev) memcpy_toio(winbase(card) + buff, skb->data, maxlen); openwin(card, page + 1); memcpy_toio(winbase(card), skb->data + maxlen, len - maxlen); - } - else -#endif + } else memcpy_toio(winbase(card) + buff, skb->data, len); -#if !defined(PAGE0_ALWAYS_MAPPED) && !defined(ALL_PAGES_ALWAYS_MAPPED) +#ifndef PAGE0_ALWAYS_MAPPED openwin(card, 0); /* select pkt_desc table page back */ #endif writew(len, &desc->len); @@ -793,7 +661,7 @@ static int sca_xmit(struct sk_buff *skb, struct net_device *dev) dev->trans_start = jiffies; port->txin = next_desc(port, port->txin, 1); - sca_outa(desc_offset(port, port->txin, 1), + sca_outw(desc_offset(port, port->txin, 1), get_dmac_tx(port) + EDAL, card); sca_out(DSR_DE, DSR_TX(phy_node(port)), card); /* Enable TX DMA */ @@ -809,40 +677,29 @@ static int sca_xmit(struct sk_buff *skb, struct net_device *dev) } - #ifdef NEED_DETECT_RAM -static u32 __devinit sca_detect_ram(card_t *card, u8 __iomem *rambase, u32 ramsize) +static u32 __devinit sca_detect_ram(card_t *card, u8 __iomem *rambase, + u32 ramsize) { /* Round RAM size to 32 bits, fill from end to start */ u32 i = ramsize &= ~3; - -#ifndef ALL_PAGES_ALWAYS_MAPPED u32 size = winsize(card); openwin(card, (i - 4) / size); /* select last window */ -#endif + do { i -= 4; -#ifndef ALL_PAGES_ALWAYS_MAPPED if ((i + 4) % size == 0) openwin(card, i / size); writel(i ^ 0x12345678, rambase + i % size); -#else - writel(i ^ 0x12345678, rambase + i); -#endif - }while (i > 0); + } while (i > 0); for (i = 0; i < ramsize ; i += 4) { -#ifndef ALL_PAGES_ALWAYS_MAPPED if (i % size == 0) openwin(card, i / size); if (readl(rambase + i % size) != (i ^ 0x12345678)) break; -#else - if (readl(rambase + i) != (i ^ 0x12345678)) - break; -#endif } return i; @@ -850,7 +707,6 @@ static u32 __devinit sca_detect_ram(card_t *card, u8 __iomem *rambase, u32 ramsi #endif /* NEED_DETECT_RAM */ - static void __devinit sca_init(card_t *card, int wait_states) { sca_out(wait_states, WCRL, card); /* Wait Control */ diff --git a/drivers/net/wan/n2.c b/drivers/net/wan/n2.c index 5b9cd2d561c..697715ae80f 100644 --- a/drivers/net/wan/n2.c +++ b/drivers/net/wan/n2.c @@ -53,7 +53,7 @@ static const char* devname = "RISCom/N2"; #define NEED_SCA_MSCI_INTR #define MAX_TX_BUFFERS 10 -static char *hw = NULL; /* pointer to hw=xxx command line string */ +static char *hw; /* pointer to hw=xxx command line string */ /* RISCom/N2 Board Registers */ @@ -145,7 +145,6 @@ static card_t **new_card = &first_card; &(card)->ports[port] : NULL) - static __inline__ u8 sca_get_page(card_t *card) { return inb(card->io + N2_PSR) & PSR_PAGEBITS; @@ -159,11 +158,9 @@ static __inline__ void openwin(card_t *card, u8 page) } - #include "hd64570.c" - static void n2_set_iface(port_t *port) { card_t *card = port->card; @@ -478,7 +475,7 @@ static int __init n2_run(unsigned long io, unsigned long irq, n2_destroy_card(card); return -ENOBUFS; } - sca_init_sync_port(port); /* Set up SCA memory */ + sca_init_port(port); /* Set up SCA memory */ printk(KERN_INFO "%s: RISCom/N2 node %d\n", dev->name, port->phy_node); -- cgit v1.2.3